Table 1.
Clinicopathological and operative characteristics of enrolled patients
| Variables | All patients (N = 810) |
|---|---|
| Age (years) | |
| Median (range) | 65 (28–91) |
| Sex, N (%) | |
| Male | 587 (72.5) |
| Female | 223 (27.5) |
| Performance status (ECOG), N (%) | |
| 0 | 679 (83.8) |
| 1 | 117 (14.5) |
| 2 | 10 (1.2) |
| 3 | 4 (0.5) |
| Body mass index (kg/m2) | |
| Median (range) | 22.7 (13.1–53.3) |
| Charlson Comorbidity Index score, N (%) | |
| 0 | 542 (66.9) |
| 1 | 170 (21.0) |
| 2 | 62 (7.7) |
| ≥ 3 | 36 (4.4) |
| Type of gastrectomy, N (%) | |
| TG | 225 (27.8) |
| DG | 482 (59.5) |
| PG | 76 (9.4) |
| PPG | 27 (3.3) |
| Lymphadenectomy, N (%) | |
| D1 | 300 (37.1) |
| D1+ | 146 (18.0) |
| D2 | 347 (42.8) |
| D3 | 17 (2.1) |
| Combined resection, N (%) | |
| Absent | 110 (13.6) |
| Present | 700 (86.4) |
| Postoperative hospital stay (days) | |
| Median (range) | 18 (8–325) |
| Operative time (min.) | |
| Median (range) | 262 (83–724) |
| Blood loss (mL) | |
| Median (range) | 240 (5–9580) |
| Postoperative complications*, N (%) | |
| Absent | 602 (74.3) |
| Present | 208 (25.7) |
| Pathological stage†, N (%) | |
| pStage I | 661 (81.6) |
| pStage II | 102 (12.6) |
| pStage III | 47 (5.8) |
*Grade II or higher according to the Clavien‒Dindo classification system
†Japanese classification of gastric carcinoma: 3rd English edition
TG, total gastrectomy; DG, distal gastrectomy; PG, proximal gastrectomy; PPG, pylorus-preserving gastrectomy